EQ2EMu/EQ2/source/depends/boost_1_72_0/libs/graph/test/planar_input_graphs/planar_K_4_e_8_p6.dimacs

p edge 12 14
e 0 5
e 0 9
e 1 10
e 1 3
e 2 11
e 4 8
e 4 6
e 5 11
e 6 5
e 7 9
e 7 2
e 8 3
e 9 11
e 10 2